Kennametal 4033852 Grooving Insert KCU25 Altin Left Hand

Product Description

The KENNAMETAL 4033852 is a solid carbide grooving insert designed for precision external grooving and parting operations on CNC lathes and turning centers. Manufactured to the NG1031 insert style within the Top Notch series, this insert carries a KCU25 grade designation and features a PVD-applied AlTiN coating for improved wear resistance and thermal stability at the cutting edge. With a cutting width of 0.79 mm and a maximum depth of cut of 1.27 mm, it is sized for fine, narrow-groove work. The left-hand orientation suits specific toolholder configurations. Licensed machinists and CNC operators working in production turning environments are the primary users of this insert.

This insert is suited for grooving applications on ferrous and non-ferrous workpiece materials where a narrow cutting width and controlled depth are required. The Top Notch series is a clamping-style insert system commonly used on production turning lines. Its 0.19 mm corner radius and 64-degree included angle support accurate groove geometry. The KCU25 carbide grade with AlTiN coating is appropriate for interrupted cuts and conditions where heat generation at the tool tip is a concern.

Key Features

• Solid carbide construction with PVD AlTiN coating for extended tool life
• Cutting width of 0.79 mm for precise narrow-groove applications
• Maximum depth of cut of 1.27 mm with a range up to 2.00 mm
• Left-hand insert orientation for compatible Top Notch clamping toolholders
• Corner radius of 0.19 mm supports accurate groove geometry
• KCU25 manufacturer grade suited for a range of ferrous turning applications

Compatibility

Designed for use with Top Notch series clamping-style toolholders that accept NG1031 left-hand grooving inserts. Refer to the toolholder manufacturer specifications to confirm insert seat compatibility before installation.

Installation Notes

Insert seating and clamping should be performed by a qualified machinist or CNC setup technician. Power down and lock out the machine spindle before changing inserts. Ensure the insert seat and clamping mechanism are clean and free of chips before seating the insert. Do not exceed the maximum depth of cut specified for this insert style, and verify toolholder torque requirements from the toolholder documentation.